snyder



3 Sheets-Sheet 1.

(No Model.)

' JQH. & s. W. SNYDER.

0A3 HEATER.

Iva 366,040. Patented July 5, 1887...

I llIlIIlllll llulllllllllllllll I'll-ll llllllllnllllllllllllll l- [III I: l "k t l t WITNESSES INVENTOR ATTORNEYS.

(No Model.) "3 Sheets-Sheet 2.. J. H. & S. W. SNYDER.

GAR HEATER.

PatentedJuly 5, 1887.

0 o o o o 0 0 o o 0 0 a o o o m o o o o o o 0.0 I o fi 01 n 0 x .U z. p I o II I'l .\1 J J Ii O 7L 1 H 0 06 a av /0G0 o o o F o o o 00 n o o o o o o o o Z] l x l b INVENTOR 6A WITNE SE8 ATTORNEYS.

N. PETERS. Phowflmu m m Washinghm n. c.

(No Model.) 3 Sheets-Sheet '3.

J. E an s. W. SNYDER.

GAR HEATER.

No. 366,040. Patented July 5, 1887..

oooo 600 INVENTOR:

' BY r! ATTORNEYS N. PETERS, Phuto-Limn m hu. Washin ton, D. C.

UNITED STATES PATENT rricn.

JOHN H. SNYDER AND SPENCER W. SNYDER, OF RICHMOND, VIRGINIA, ASSIGNORS OF ONE-THIRD TO HENRY S. HUTZLER, OF SAME PLACE.

CAR-HEATER,

SPECIFICATION forming part of Letters Patent No. 366,040, dated July 5,1887.

Application filed February 7, 1887. Serial No. 226,777. (No model.)

To all whom it may concern.-

'SrENoER W. SNYDER, of Richmond, in the county of Henrico and State of Virginia, have invented a new and useful Improvement in Gar-Heaters, of which the following is a specification.

Our invention is an improvement in carheaters, seeking to provide a simple inexpensive construction which may be readily applied to cars nowin use or to cars in the course of building, by which a supply of fresh air properly heated may be admitted to the car, and in the use of which the danger of the car becoming ignited from thefirc in the case of an accident is reduced to the minimum and may be regarded as practically obviated. These ends we attain by means of the construction hereinafter described, reference being had to the accompanying drawings, in which- Figure 1 is a perspective view of our improved heater. Fig. 2 is a vertical section thereof on line a: as, Fig. 3. Fig. 3 is a verti' cal section on line yy, Fig. 2. Fig. 4 is a transverse section on line 2 2, Fig. 2'; and Fig. 5 shows a modification.

The invention consists in certain construetions and combinations of parts, as will be de scribed, and pointed out in the claims.

Manifestly in heaters of this class it is of great importance that the construction should be such as to prevent, as far as possible, the coals of the fire from coming in contact with and igniting the car in case of accident. This end may be subserved in two ways, both of which are involved in our invention-to wit, first, to construct the heater so the coals will not be spilled thereout in case such heater should be overturned, and, second, to so construct the heater that it will bend or mash up and not become fractured, and so form vents for the coals in the case of an accident.

Our improved heater comprises a casin g, A, and an inner portion or stove, B, the construction of both such parts being more fully described hereinafter. In the construction shown the stove has a fire-pot, G, a suitable grate, D, which may be turned or shaken and has its handle D extended through the casing, and a door-opening, e, the latter being normally closed by door E, hinged as shown, and eapa ble of being opened to replenish the fuel, or for any other desired purpose. Below the grate we form an opening or way for the ash-drawer F, which is provided at its outer end with a strap,f, having an opening, f, and used in the manner presently described. Over the fire-pot, and above the door E, we provide a drunrlike compartment, G, through which are extended a plurality of tubes, H, which open at their opposite ends out of the compartment and are nested, as shown most clearly in Fig.

3. By employing anumber of these tubes, as

shown, we are able to largely increase the heating-surface,and consequently secure better results, as will be manifest from the drawings.

A. special advantage results from the arrangement of the tubes in close proximity, as shown in Fig. 3, in that thereby the coals will to a large extent be held from falling out of the stove should the latter be overturned, While such construction will not hinder the draft by retarding the passage of the products of combustion. Above the nest of tubes II we provide a bonnet, I, which connects with the stove-pipe or uptake 2'. In this bonnet is secured a diaphragm-like partition-plate, J, perforated by a number of small holes, j, and by preference made in the form of a truncated cone, as shown in Figs. 2 and 3. This partition-plate forms a protector against the outpassage of any particles of coals, even if such particles should pass through the nest of tubes, which latter form an approximate protection, as before described. The nest of tubes coact with the perforated partition to prevent the exitof coals and fire in a special manner. The tubes, it will be seen, serve to receive the force of the heavy coals when the stove is overturned and prevent them from coming in contact with and fracturing the perforated partition. Manifestlythesaid nest of tubes,being located in the hottest part of the fire, would become very hot unless some means of avoiding such effect were provided, and when hot would but feebly resist the force of the heavy coals in case of accident. It therefore becomes quite an object to prevent said tubes from becoming so heated as to'fail in the said obj cct. This we accomplish by forcing the air into the fire-pot to support combustion, the

air entering the ring at 76 from a pipe, L, and discharging into the fire-pot through a suitable opening, 70, as shown. The air entering at It circulatesin the ring and discharges into the fire-pot, the cold air serving to prevent the ring from melting. By means of this ring it will be seen we provide a circuitous passage for the air which supports combustion, and consequently reduce to the minimum the possibility of any coals passing out of the opening through which such air is supplied, so that such construction also furthers the special objects of our invention. The pipe L has a valve or damper, l, by which the supply of air to the fire-pot may be regulated, and such pipe, while it may open directly into and receive air from within the car, is preferably a branch of the main fresh-air pipe, hereinafter described. The casing A is fitted over the stove, having a suitable opening, a, in its top plate for the passage of the Stovepipe, and being, like such stove, supported on the floor of the car, as shown, a plate ofzinc or the like being usually interposed between such parts and the floor, as shown. The main air-supply pipe Mleads up through the floor of the car and connects at m with the casing, the said pipe opening at such point opposite one end of the open-ended tubes H, so the air flowing in from said pipe will circulate through the tubes 'H,and then within the casingA,whence,

it will pass into the car, the casing being supplied with a number of perforations, A in its different sides and top to permit the passage of the heated air into the car. It will be noticed that this pipe M opens through the case A opposite the nest of tubes H, but does not connect directly with any one of said tubes. Thus a portion, and probably the major part, of the air will pass through the pipe Hin line with opening M, while the rest will be diffused within the space between the casing and the nest of tubes, and will pass through the other tubes H. This casing, like the stove, is formed of wrought-iron,s0 it may be bentor mashed before it will break, and consequently the casing serves to preventthe out-passage of coals, even if such particles should escape from the stove in case of an accident. In the pipe M we provide a damper, m, by which to-regulate the inflow of fresh air, the branch pipe L opening into the main supply-pipe below the damper m, so the regulation of the inflow of airthrough one of the said pipes L M will not aifect the other. The pipe M extends without the car, preferably below it, as shown, or it may be out of the side, if desired, and receives the air at such end, a funnel or other suitable collector, a, being provided thereat. Where desired, a blower, N, of any suitable variety may be employed to supply the air in a blast, the blower being geared by belt 0, or in other suitable manner, with the car-axle. (Not shown.) The front of the casing has an opening, A, through which the ash-box may be removed, and is provided adjacent to said opening with a staple, 1), over which the strap f may be turned, and through which the lock P may be secured to hold the drawerin posi: tion to receive the ashes. 'Above the opening A we form an opening, A about in register with opening e,and' having a door, Q, which is provided with a strap, (1, to fit over a staple, 1', arranged adjacent to the opening A, and through which the lock R is passed to secure the door Q closed. In the construction shown in Figs. 1 and 3 the locks are padlocks and are suspended by chains from the casing, so they cannot becomelost; but manifestly the form of locks P and B may be varied, and they might, if desired, be such as shown in Fig. 5, in which construction let 1 represent the door Q or the front of drawer F, and 2 the bolt ofa slide-bolt lock, such lock being secured to the casing in such arrangement that the bolt may be shot in front of the part 1 when closed; but we prefer the construction as shown in Figs. 1 and 3, for the reason that thereby a positive lock-connection is secured. The door Q is joined bya connection, S, with the stove-doorE, such connection being preferably a chain having a detachable connection with one of the doors, so it may be used or not, as desired. By this connection, when effected as shown in Fig. 1, the opening of the outer door effects a similar adjustment of the inner door, such construction being very convenient.

It will be seen that we have in our heater combined theseveral precautionary structures in such manner that incase of an accident it is practically impossible for the coals to be spilled onto the floor, and also, by employing the surrounding casing, the liability of any wood-work or other inflammable construction coming in contact with the stove is largely reduced.

It will be seen that we provide no damperopenings through the front of the stove which might form exits for coals; also, that after supplying the fuel and removing the ashes it is easy to lock the door and the drawer in place,

IIO

the brakesman or other attendant carrying the key, preventing meddlers from interfering with the apparatus, and insuring the arrangement of the several parts in the proper position and adjustments to avoid fire in case of accident.

It is obvious that by obviating fire in case of accident a great loss of life will be avoided, and the avoidance-of fire results in the saving of property, particularly mail and express matter.

ing, the stove inelosed therein, the nest of tubes extended transversely through the stove, the air-supply pipe M, opening opposite one end of said tubes, the branch pipe L, communicating at one end with pipe M and atits opposite end with the combustionrhamber, the damper Z, arranged in said pipe L, and

damper m, arranged in pipe M between the branch pipe L and the nest of tubes, substantially as set forth. 7 i

3. The combination of the perforated casing, the stove inelosed therein and having the nest of transverse open-ended tubes, the pipe M, having damper or valve m, and the pipe L, having damper or valve Z, substantially as set forth.

The above specification of our invention signed by us in the presence of two subscribing witnesses.

JOHN H. SNYDER. SPENCER W. SNYDER. r

Witnesses:

LoUIs RAWLINGS, J. F. JoHNsoN. 

